Datasheet

MAX6361–MAX6364
SOT23, Low-Power µP Supervisory Circuits
with Battery Backup
4 _______________________________________________________________________________________
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
12
14
16
18
20
SUPPLY CURRENT vs. TEMPERATURE
(NO LOAD)
MAX6361 toc01
TEMPERATURE (
°
C)
SUPPLY CURRENT (µA)
-40 20 40-20 0 60 80
V
BATT
= 0V
V
CC
= 5.0V
0
0.2
0.6
0.4
0.8
1.0
1.2
BATTERY SUPPLY CURRENT
(BACKUP MODE) vs. TEMPERATURE
MAX6361 toc02
TEMPERATURE (
°
C)
BATTERY SUPPLY CURRENT (µA)
-40 20 40-20 0 60 80
V
BATT
= 2.0V
V
CC
= 0
V
BATT
= 2.8V
0
1
4
3
2
5
6
7
BATTERY TO OUT ON-RESISTANCE
vs. TEMPERATURE
MAX6361 toc03
TEMPERATURE (
°
C)
BATT TO OUT ON-RESISTANCE (Ω)
-40 20 40-20 0 60 80
V
BATT
= 5.0V
I
OUT
= 25mA
V
CC
= 0V
V
BATT
= 2.8V
V
BATT
= 2.0V
0
0.3
0.9
0.6
1.2
V
CC
TO OUT ON-RESISTANCE
vs. TEMPERATURE
MAX6361 toc04
TEMPERATURE (°C)
V
OUT
TO OUT ON-RESISTANCE (Ω)
-40 20 40-20 0 60 80
V
CC
= 3.0V
I
OUT
= 65mA
V
CC
= 4.5V
I
OUT
= 150mA
V
CC
= 2.3V
I
OUT
= 25mA
190
195
205
200
210
RESET TIMEOUT PERIOD
vs. TEMPERATURE
MAX6361 toc05
TEMPERATURE (
°
C)
RESET TIMEOUT PERIOD (ms)
-40 20 40-20 0 60 80
0
30
15
75
60
45
135
120
105
90
V
CC
TO RESET PROPAGATION DELAY
vs. TEMPERATURE
MAX6361 toc06
TEMPERATURE (
°
C)
PROPAGATION DELAY (µs)
-40 20 40-20 0 60 80
V
CC
FALLING
0.25V/ms
1V/ms
10V/ms
2.0
3.0
2.5
5.0
4.5
4.0
3.5
RESET THRESHOLD
vs. TEMPERATURE
MAX6361 toc07
TEMPERATURE (°C)
THRESHOLD (V)
-40 20 40-20 0 60 80
MAX636_46
MAX636_26
1.2
1.4
1.3
1.6
1.5
1.9
1.8
1.7
2.0
-40 0-20 20406080
MAX6362
WATCHDOG TIMEOUT PERIOD
vs. TEMPERATURE
MAX6361toc06a
TEMPERATURE (°C)
WATCHDOG TIMEOUT PERIOD (s)
1 10010 1k 10k
MAXIMUM TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
MAX6361 toc08
RESET THRESHOLD OVERDRIVE V
TH
- V
CC
(mV)
MAXIMUM TRANSIENT DURATION (µs)
400
300
350
250
200
0
50
150
100
MAX636_46
MAX636_26
RESET OCCURS
ABOVE CURVE